For a few weeks now, when trying to select alternative Flights when using Book Hotel + Flight / Plan Your Trip (for multiple hotels) i get a blank page stating that the date is invalid (see 2nd screenshot below)

Have tried default browser (Edge), Chrome and mobile browser .. all to no avail
- cookies set to clear when Browser closed
- they have been manually cleared recently to ensure TCB tracking of a recent booking
- Problem does not exist when using Holiday Finder, but am looking to split our stay




Everyone else having similar issue...?